Hello,
The EvoStream Media Server unfortunately does not currently support "app names" for RTSP. However, we have done some investigating and there are a couple of ways we could support a feature like this in the near term. It would include some development effort on our side and so we would need at least some commitment from you. Perhaps we can have a discussion regarding this in the next couple days to see how we could move forward on this. Please get a hold of me at bmeissner@evostream.com and we can schedule something.
Bryan